Mike
@centyone
Scientists are confident Mars was once abundant with water, as seen in massive flood-carved channels, ancient river valleys, and minerals that form only in liquid water. But how the Red Planet lost its water, leaving behind the arid world we see today, is still up for debate. Now, a new challenge to a recent theory surrounding vast amounts of water stored beneath the Martian surface suggests the Red Planet may not be hiding liquid water beneath its crust after all.
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